Who qualifies for the Home Use Program (HUP)?

From Microsoft HUP FAQ :

Who qualifies for the Home Use Program (HUP)?

The Home Use Program is a Software Assurance benefit available to Microsoft volume licensing customers with active Software Assurance coverage on their Office applications.  Employees who use the covered licenses at work are eligible to purchase these Office applications for use on a home PC during the term of their employment.  This temporary license expires with the employers Software Assurance coverage, or upon termination of employment with the covered customer.